Dumping-car.



PATBNTBD JAN. 22, 1907.

F. PETELER.

D\UMPING UAR. APPLIGATION FILED sBPT.29,19o6.

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4 rnviTEp sTATEs PATENT oEEIoE.

FRANCIS PETELER, OF MINNTPOLIS, MIN N SOTA. I

i DUIVIPINC--CAR.

specineatiomrs Patent.

Application nea septembe] 29,1906. semi No. 336.775.

No. 842,008. rammed Jan. 22, 1907.

To .f1/ZZ whom t may concern. I operation of dumping to permit further tilt- Be it known that I, FRANCIS PETELER, of i ing of the load and to utilize the weight of the Minneapolis, Hennepin county, Minnesota, upper side of the car in returning it to its have invented certain new and useful .Im- Ihorizontal position. This is covered fully in provements in Dumping-Cars, of which the i my patent above referred to. following is a specification. A door 6 is provided oneach side of tne car,

My invention relates to portable dumpingcars 5 and the primary object of my invention is to provide means for lifting and supporting the doors a sufficient distance above the bottom of the car-body to allow the large masses of rock or earth gathered up by a steamshovel to be easily andrapidly discharged from a car without being in any way obstructed by the doors.

A further object is to provide a door lifting and supporting means adapted for use particularly in connection with the centrally and i eccentrically pivoted car-body shown and described in Letters Patent of the United States issued to me August 28, 1906, No. 829,667.

The invention consists generally in provid- 4 ing standards at each end Vof the car and levers pivoted thereon and having flexible connections with the car-body.

Further, the invention consists in connecting the said levers with the car-body so that the weight of both doors maybe utilized to aid in returningthe car-body to its normal horizontal positionafter dumping.

Further, the invention consists in various constructions and combinations, all as hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure l is an end elevation of a dumping-car with` my invention applied thereto. Fig. 2 isa similar view showing the car in its dumped position with the door on the dumping side lifted high above the bottom ofthe car.

In the drawings, 2 represents the car-frame, and 3 the car-body, supported upon bearings 4 and adapted to rock to either side for the purpose of discharging its load. Chains -5 connect the car-body'with the truck-frame for the purpose of preventing Apremature dumping. The bearings or pivots for this car-body are shown and described in my Letters Patent above referred to and need no detailed illustration in this application, it being sufficient to state that the car-body is adapted to tilt in either direction upon the central pivot 4 and the eccentric pivots 5', the bearing of the car-body being changed during the closing the discharge-opening therein and bearing at `the bottom against rollers 7, which allow the door to be raised vertically, but prevent it from being pushed outward by the pressure of the load.

At the top of the door on each side gudggeons 8 are mounted and adapted to bear upon plates 9, secured to the beveled edges of the,

car-body on each side. These plates receive the gudgeons when the car-body is being returned to its horizontal position and guide the door to its proper place.

For the purpose of lifting each door to a point high above the bottom of the car-body `to allow the load, even when composed of masses of earth and rock, to slide out without obstruction I provide bars 11, pivotally mounted at 1 2 upon a cross-bar 13, secured to the upper ends of standards 14, that are mounted on the truck-frame at each end of the car. There is one of these bars 11 at each end of the door, and as there are two doors on the car there will be four of the bars 11 employed, two on a side. The bars are preferably mounted so that two lever-arms are formed in the ratio of two to one, and the long arm has a longitudinal slot 15, in which the gudgeons 8 are adapted to slide, In the operation of dumping the car-body tips on a lcentral bearing and also upon its eccentric bearing. Consequently the radius of its movement changes, and the slot 15 in each vbar is utilized to allow the door to accommodate itself to the varying radius of the carbody in its dumping movement.

Stops 11 are provided on the cross-bar 13v to engage and limit the swinging movement of the bars 1l. The inner or short arm of each bar 11 is connected by a chain 16 with a plate 17, having an eye to receive the hook of the chain and secured to the bottom of the car. The plate is capable of adjustment toward or from the middle line of the car until the proper tilt or swing of the bars is obtained to raise the doors to the proper height or lower the same into position to close the side of the car. When the car is being dumped, the door on the dumping side will be lifted as the bottom of the car swings downward, and the gudgeons will slide to the IOO lIO

lower end of the slot 15 and hold the doorv in l an elevated position above the bottom -and sides of the car and allow any material of whatever shape or size to be discharged'without the slightest obstruction. The slots 15 also cause the weight of the door on the upper side of the car-body to rest entirely upon the car, as shown plainly in Fig. 2, and this weight l utilize to aid in returning the car to its normal horizontal position after being dumped. The weight of the door on the opposite side is also utilized through its bars and the chains connecting their short arms with the bottom of the car to aid in lifting the car to its normal position.

The door being 'mounted on the long arms of its bars 11, the ratio of the movement of these arms to the shorter ones being preferably two to one, considerable additional power to aid in lifting the car-body to a horizontal position will thereby be obtained. ln fact, these doors are so heavy that when the car is discharged of its contents their weight will swing it back to its norma-l position without any assistance on the part ofthe workmen.

The operation of the car is as follows: The car is tilted on its bearings until the flexible connection between the lever on the dumping side and the car-body is drawn taut, when the bars on that side will be lifted, raising the door with them as the car-body swings down. The relative position of the door and the carbody is illustrated in Fig. 2, where it will be seen that the door is held in a raised position by the bars 11, and sufficient space is provided beneath the door to allow the contents of the car to be freely discharged. The chains connecting the bars with the car-body are of sufficient length so that the load will be carried past the center before the slack of the chains is taken up and the bars begin to raise the door. At that time the momentum of the car swinging from its center to its eccentric bearing will be so great that the door will be raised without any apparent check in' the tilting movement.` At the same time that the door on one side of the car is raised by the tilting movement toward that side the door on the opposite side will also be raised with the car-body until its gudgeons are at the upper ends of the slots in the bars on that side, and the door will rest on the car-body, and its weight will be utilized to aid in returning the body to its horizontal position after the load is discharged. As soon as the carbody regains its horizontal position the chains connecting it with the truck-frame will be hooked and the car is ready to be loa-ded again.

This'apparatus l have found to be a very valuable adjunct to my improved bearing covered by the patent above, as it not only causes the door to be raised to a point higher than has ever been done in cars of this type and where they in no way interfere with the discharge of the load, but also permits me to utilize the weight of both doors in returning the car-body to its horizontal position.

l claim as my invention- 1. A dumping-car comprising a frame, a car-body having central and eccentric pivots thereon and capable of dumping toward either side, doors for said car-body, bars pivoted on said frame and engaging said doors to lift them vertically one at a time according to the direction in which the car-body is tilted, and means connecting said bars with said car-body whereby the tilting of the body toward one side will oscillate the bars on that side to lift the door, substantially as described.

2. A dumping-car comprising a frame, a car-body having central and eccentric pivotbearings thereon and adapted to dump upon either side, doors for said car-body, bars pivotally supported intermediate to their ends on said frame at each end of the car and having slotted outer ends, said doors having gudgeons slidable within said slots, said gud geons normally resting on the sides of the car and the weight of the door on the upper side of the car being utilized to aid 4in returningv it to its horizontal position after dumping, and means connecting the inner ends of said bars with the car-body at one side-of the center, whereby when the car is tilted toward one side,l the door on that side will be lifted a sufficient distance above the bottom and sides of the car to allow the load to dump without obstruction, substantially as described.

3. ln a dumping-car, the combination, with a frame, of standards mounted on each end thereof, a car-body pivotally supported between said standards and adapted to dump on either side, doors for said car-body, bars pivoted at points intermediate to their ends on said standards and having slotted outer ends wherein said doors are mounted, said slots allowing the doors to bear on the sides of the car-body except when raised in dumping, means connecting the inner ends of said bars with the car-body at one side of its center, whereby the weight of both doors will be utilized to return the car-body to its horizontal position after dumping, substantially as described.

4. A dumping-car comprising a frame, a car-body having central and eccentric pivots thereon, doors for said car having gudgeons at each end adapted to rest upon the ends of the car-body, bars pivotally supported at points intermediate to their ends upon said frame and having bearings at their outer ends for said gudgeons, and means connecting said bars with said car-body at one side of its center whereby when-said car-body is tilted in either direction, the door on the dumping side will be lifted automatically above the IOO bottom and sides oi the car and the outer door will be raised, resting upon the upper side of the car and the weight of both doors will be utilized to return the car-body to its horizontal position after dumping, substantially as described.

5. A dumping-car comprising a frame, a car-body pivoted thereon and capable of dumping toward either side, doors for said car-body, bars pivoted at points intermediate to their ends on said frame above the level of said car-body, pivots, said bars engaging said doors to lift them' vertically one at a time according to the direction in which the car-body is tilted, and means connecting said bars with said car-body whereby the tilting of the body toward either side will osciliate the'bars on the dumping side to lift the dooi on that side, substantially as described.

6. A dumping-car comprising a Jframe, a car-body pivoted thereon, and capable ot dumping toward either side, doors for said car-body, bars pivoted at pointsintermediate to their ends independently of said carbody and engaging said doors, and means connecting said bars with said car-body,

' whereby the tiltingof the body toward one side will oscillate the bars on that side to lift the door a sufficient distance above the bottom and sides of the cary to allow the load to dump without obstruction.

7. A dumping-car comprising a frame, a car-body having central and eccentric pivots thereon and capable of dumping toward either side, doors for said car-body, bars pivotally supported on said frame at. points intermediate to their ends above the level of said car-body pivots, said bars having short and long arms, said long arms engaging said doors, and iieXible means connecting said short arms with the car-body at one side of the center thereof, whereby the tilting of said car-body will lift the door on the dumping side, and stops for limiting the oscillating' movement of said bars in one direction, substantially as described.

8. A dumping-car comprising a frame, a car-body pivoted thereon, a door for said carbody, bars pivoted on said frame and engaging said door to lift it vertically, and means connecting said bars with said car-body whereby the tilting of the body to dump the car will oscillate the bars to lift the door out of the path of the load, subtantially as described.

9. A dumping-car comprising a frame, a car-body pivoted thereon, a door for said carbody7 bars pivoted at points intermediate to' their ends on said frame and engaging said door, and means connecting said bars with the car-body at one side of the center whereby when the car-body is tilted to discharge the load, the door will be lifted out of the path of the load and its weight will be utilized to aid in returning the car-body to its normal position.

1,0. In a dumping-car, the combination, with a frame, of a car-body pivoted thereon and adapted to dump on either side, doors for said car-body, bars pivoted on said frame and having slotted upper ends wherein said doors are mounted, said slots allowing the doors to bear on the sides of the car-body eX cept when raised in dumping, and means connecting said bars with the car-body whereby the weight of both doors `will be utilized to return tIie car-body to its horizontal position after dumping.

li. In a dumping-car, a door arranged to move vertically when the car is dumped to allow the unobstructed discharge of the load, and means supported independently of the car-body and connected to said door and also to the car-body whereby when the car is tilted the doorwill be raised, substantially as de scribed.

l2. A dumping-car adapted to tilt toward either side having doors and means supporting them independently of the car-body, and means connecting said supporting means with the car-body at one side of its center, whereby when the car-body is tilted in either direction the door on that side toward which the body is tilted will be raised and the other door will 4remain in its normal position and the weight of both doors will be utilized to aid in returning the ear to its horizontal position.y K n 13. -A dumping-c ar comprising a truckframe and a car-body pivoted thereon, doors for said car-body, means connected with said doors and whereby when the car-body is tilted in either direction the door on the side toward which the car-body is tilted will be raised out of the path of the load, and means connecting said raising means eccentrically with the car-bod y, whereby the weight of the elevatedl door will aid in returning the carbody `to its normal horizontal position after dumping, substantially as described.

In witness whereof I have hereunto set my hand this 22d day of September, 1906.

- FRANCIS PETELER.

Vitnesses RiCHAnD PAUL, J. B. ERA.

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